Timing Chain and Sprockets Removal

Tools Required

• J 8433-1  Puller Bar
• J 41558  Crankshaft Sprocket Remover
• J 41816-2  Crankshaft End Protector

NOTE: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.
1. Remove the camshaft sprocket bolts.
2. Remove the camshaft sprocket and timing chain.
Fig 1: Camshaft Sprocket, Bolt & Timing Chain
Courtesy of GENERAL MOTORS CORP.
3. Use the J 8433-1  , the J 41816-2  , and the J 41558  in order to remove the crankshaft sprocket.
Fig 2: Removing The Crankshaft Sprocket Using J 8433-1, J 41816-2 & J 41558
Courtesy of GENERAL MOTORS CORP.
4. Remove the crankshaft sprocket.
Fig 3: View Of Crankshaft Sprocket
Courtesy of GENERAL MOTORS CORP.
5. Remove the crankshaft sprocket key, if required.
Fig 4: View Of Crankshaft Key & Keyway
Courtesy of GENERAL MOTORS CORP.